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V-Lab

CBOE EFA ETF Volatility Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 24th, 2026

1 Day

152.40%

increased by 24.56%

1 Week

152.68%

increased by 24.84%

1 Month

153.47%

increased by 25.63%

Analysis last updated: Friday, July 24, 2026 at 11:37 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of CBOE EFA ETF Volatility Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2008 to Jul 17, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 254% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
20.62***
α

ARCH

Response to squared shocks

0.2135
17.69***
β

GARCH

Volatility persistence

0.8107
138.89***
γ

leverage

Additional response to negative shocks

-0.1531
-9.11***

Persistence:

0.948

Half-life:

13 days